What is an assembly of equipment for supplying compressed gas called?

The term that is most accurately used to describe an assembly of equipment for supplying compressed gas is "Bulk System." This term typically refers to a large-scale system designed for the storage and distribution of gases in a healthcare setting. Such a system often includes bulk storage tanks, piping for distribution, regulators, and safety devices, all integrated to ensure a constant supply of compressed gases, such as oxygen or nitrous oxide, to various areas of a healthcare facility.

In contrast, other terms such as "Cylinder System" would refer specifically to individual gas cylinders rather than an assembly of extensive equipment. "Gas Supply Assembly" is not a standard term widely recognized in the context of NFPA 99, and "Pressure Assembly" may indicate a component or part of a system but does not encompass the broader setup necessary for delivering compressed gases efficiently and safely. Thus, "Bulk System" is the most precise terminology that conveys the concept of a comprehensive assembly dedicated to gas supply.